Summary of Significant Accounting Policies Property, Plant and Equipment (Details 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2025	Dec. 31, 2024
Property, Plant and Equipment
Property, plant and equipment, at cost		$ 20,620	$ 19,269
Accumulated depreciation		(9,648)	(8,733)
Property, plant, and equipment, net		10,972	10,536
Land and land improvements
Property, Plant and Equipment
Property, plant and equipment, at cost		792	782
Buildings and improvements
Property, Plant and Equipment
Property, plant and equipment, at cost		4,278	4,031
Machinery and other equipment
Property, Plant and Equipment
Property, plant and equipment, at cost		10,931	10,389
Capitalized software costs
Property, Plant and Equipment
Property, plant and equipment, at cost		1,068	779
Leasehold improvements
Property, Plant and Equipment
Property, plant and equipment, at cost		$ 3,551	$ 3,288
Noncash or Part Noncash Acquisition, Fixed Assets Acquired	$ 55
Minimum | Capitalized software costs
Property, Plant and Equipment
Property, plant and equipment, estimated useful life		3 years
Maximum [Member] | Land and land improvements
Property, Plant and Equipment
Property, plant and equipment, estimated useful life		40 years
Maximum [Member] | Buildings and improvements
Property, Plant and Equipment
Property, plant and equipment, estimated useful life		45 years
Maximum [Member] | Machinery and other equipment
Property, Plant and Equipment
Property, plant and equipment, estimated useful life		30 years
Maximum [Member] | Capitalized software costs
Property, Plant and Equipment
Property, plant and equipment, estimated useful life		7 years